Somewhere I read that once while Beatles were recording a song the taped of the recorded piece suddenly played backward due to some glitch in the recording instrument. What they heard had simply terrified them. It was a sound straight out of hell. They kept the piece as it was in the original song.
Later scientists carried out some experiments on this and discovered that if you try to hear any recorded tape by playing the tape reverse, you can hear Satan speaking to you. Sometimes such recording contains predictions too. For an example, one such recording had the prediction of the “Operation Desert Storm”.
I have tried to carry out the experiment myself and I found out that it is indeed true. The voice you hear in the recording is indeed of Satan. If you do not have a strong heart, you might even die of fright.
I recommend please do not even try it. I believe in everything you said in your post.

Also achilles, what makes you think hell is inside the earth, when there are countless universes in space which the scientists are in the process of discovering.
What is this thing about dying without repentance. What happens to all those who die in accidents, earthquakes, tsunamis, building collapses, plane crashes. Will they all go to hell as they would have had no time to repent? And last but not the least, what about other religions? What will happen to them?

Hi BEN, No, I certainly don't believe it. It has to be just another ploy by religion to scare people. I think they are really getting desperate now. Check and see how many "real" scientists believe it. Don't worry, it's just another scare tactic no matter who is using it. Blessings.

While I do believe in back-masking (messages hidden in songs) I don't believe the sounds from hell are real. If you are curious about the origins of back masking in rock and roll I suggest you look into Aleister Crowley who groups like the Beatles and Led Zepplin Idolized. They literally followed his teachings word for word.

i heard a story like this when i was a kid of workers. i guess they were coal miners or oil drillers and they heard screaming in the ground. he was a good man who followed the word of God but he was kinda wierd as he had the story from the newspaper taped to the back of his Bible. It scared me back then when I was a kid but I don't believe that stuff. i think its just religious people trying to put fear into people just to get them in church. they may have heard something that sounded like screaming from inside the ground and automatically though it was people from hell because of their religious beliefs or they could of just staged the whole thing. Either way I don't believe hell if their is a hell is in the inside the earth as thats part of the physical world. when your gone your either a spirit or nothing but i can't say exactly which one is right because i'm a skeptic.

I don't know if its real or not. I heard the audio, and it sounded very real. You can tell the difference in actors, and the real thing. You can hear the fear in people's voices as they are screaming, and crying out. Whatever it is, its very scary.